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Old 11-25-2018, 10:16 PM   #61
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Now it`s all sorted, can I throw in my memory from a case involving lifting slings which failed,the kind you see on a travel-lift. They failed due to a botched non factory repair,dropping the boat from a considerable height, with owner onboard. But, what was discussed was that the ways the sling ends are brought together or attached can have considerable effect on the rated lifting capacity. FWIW.
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Old 12-19-2018, 07:59 AM   #62
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The video link below removes any doubt about the engineering facts of rigging.

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Old 12-19-2018, 09:37 AM   #63
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Impressive.... Have seen stumps a lot smaller resist multiple efforts of mid sized dozers.

Rigging is engineering, not rocket science though.

Take reasonable safety factors into account, test load a bit and do your thing.
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